[DragonFlyBSD - Bug #3386] (New) panic when umounting devfs inside jail

[bugtracker-admin at leaf.dragonflybsd.org]

Issue #3386 has been reported by liweitianux.

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Bug #3386: panic when umounting devfs inside jail
http://bugs.dragonflybsd.org/issues/3386

* Author: liweitianux
* Status: New
* Priority: Normal
* Target version: 6.6
* Start date: 2025-08-28
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tuxillo reported this panic on 2025-03-17:

<pre>
mountpoint panic with 1 spinlocks held
panic: page fault
cpuid = 0
Trace beginning at frame 0xfffff806c2d854c8
trap_fatal() at trap_fatal+0x301 0xffffffff80be6281
trap_fatal() at trap_fatal+0x301 0xffffffff80be6281
trap_pfault() at trap_pfault+0x431 0xffffffff80be6861
trap() at trap+0x17c 0xffffffff80be6dcc
calltrap() at calltrap+0x9 0xffffffff80baa4ba
</pre>

tuxillo› just mounted devfs inside a jail, tried to unmount it, boom



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